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The best size rock for your landscaping depends on the design, as different boulders serve different purposes. If you want to group boulders to create a natural-looking cluster, you’ll need a range of sizes. Otherwise, here are some suggestions:

• Small boulders (smaller than 12 inches across): Best for landscape edging and fire pits 

• Medium boulders (12–24 inches): Best for retaining walls and water features

• Large boulders (more than 24 inches): Best as standalone landscaping features, steps, or walkways.

Of course, you can mix and match sizes to create a unique display.

Monkey grass makes a beautiful, low-maintenance ground cover, particularly in shadier areas where other grasses don’t receive enough sunlight to grow. It’s also excellent for edging walkways, bordering flower beds, and accenting rock gardens. You can grow it as a container plant, as well, which is a perfect solution for those who love its foliage but want to contain the spread.

The best type of rock for landscaping depends on your specific project and needs, as different rocks are suited for different applications. For covering large areas or creating an affordable driveway, consider gravel, but note that it can wash away in flowing water. For water features, river rocks are a good option. Flagstone and cobblestone are ideal for aesthetically pleasing patios and walkways. If you are building a stone wall, fieldstone or small boulders are up to the task. Large boulders and landscape rocks work well as statement pieces, to fill empty space, or to indicate boundaries, but be mindful that they can overwhelm smaller gardens. The best approach is to first define your landscaping project and then select the rock type that best fits that purpose.

If you choose to leave gaps between your pavers, you can grow some ground cover plants between them for an organic feel. Look for plants such as creeping thyme, dymondia, jewel mint of Corsica, or clover.